ayceejay
Guru
- Location
 - Rural Quebec
 
Back in my rowing days blisters and rawness of the hands was not uncommon so we would use methylated spirits to harden them up - perhaps you could try this on yer bum 
Seriously though I think it might be something to do with weight bearing, no doubt you are over weight (forgive me if I am wrong) and also in a position on the bike that does not share the load. So before buying yet another saddle fiddle with saddle height/tilt/ fore and aft. Take the spanner out with you and adjust as you go.
	
		
			
		
		
	
			
			
Seriously though I think it might be something to do with weight bearing, no doubt you are over weight (forgive me if I am wrong) and also in a position on the bike that does not share the load. So before buying yet another saddle fiddle with saddle height/tilt/ fore and aft. Take the spanner out with you and adjust as you go.
				
) or you will end up sliding forward on it.